In masonry, stones which are set forward of the general wall surface to provide a rugged or rustic appearance. 2. Any component, member, or part which juts out from a building. 3. The process or technique of representing a three-dimensional object by projecting all its points by straight line, either parallel or converging, to a picture plane. 4. A property of perception in which the mind’s eye searches for meaning by imagining and projecting known or familiar images onto the seemingly amorphous shapes of a pattern until it finds a match which makes sense. This attempt to complete an incomplete pattern, or find a meaningful pattern embedded in a larger one, is in accordance with what we already know or expect to see. Once seen and understood, it is difficult to not see the image.